This is a backpack from Don Quijote's private brand, "Jonetsu Kakaku" (Passion Price). I purchased it for 10,989 yen. It was jointly developed with Ace. I intended to use it at work, but it wouldn't fit in my locker, so I'm not currently using it. It's a fairly large backpack. I haven't used it much, but it was displayed roughly in the store, so there might be some minor scratches.